Valve.



R. E. MOFFITT.

VALVE.

APPLIGATION FILED 111111.11910.

9923'75. Patented May16,1911.

UNITED sTATEs PATENT OFFICE.

ROBERT E. MOFFITT, 0F LUDLOW KENTUCKY. i

VALVE..

To all wrmn it may concern.'

Beit known that I, ROBERT E. MoFEITr, a` citizen of the United States,and a resident of Ludlow, Kenton county, State of Kentucky, haveinvented certain new and useful Improvements in Valves; and 'I dodeclare the following'to be a clear, full, and exact descriptionthereof, attention being called to .the accompanying drawing, with thereference characters marked thereon, which form also a part of'thisspecication.

This invent-ion relates to an improved construction of steam-valves andconsists of certain novel features, as hereinafter described and pointedout inthe claims and as illustrated in the accompanying drawing, inwhichz- 4 Figure 1, shows a `longitudinal section throughthe housing ofthe valve. Fig. 2, showsparts of the precedingfigure, partly in 'sectionand partly in elevation. Fig. 3, shows in underside view part of thevalvestem. Fig. 4, shows the end of'this stem and part of almanipulating handle connected thereto. Fig. 5, is a verticalcrosssection of this stem as it appears in Fig. 2, showing alsol thevalve and its position with relation to this stem. Fig. 6, is a verticalcross-section on line 6 6 of Fig. 2. In the drawing a pipe-conduit isshown of which 9 and 10 are alined parts; Passage through this conduitis controlled by a valve A, of which B is the housing or shell and thewall of which forms an approximately globular inclosure for a chamber bwhich contains part of the valve-actuating means. This chamber has twooppositely locatedA openings which aline with each other and also withthe parts of the pipe-conduit when the housing is connected in position.The wall of this housing is extended around these openings in it, saidextensions being so formed as tol roduce two attaching nipples 11 and 12which permit the aforementioned connection. The opening at. one of thesenipples, at 11 in this case, forms the inlet to valve-chamber b and theother forms the outlet from it.

' The end of nipple 11 constitutes the seat 13 for valve A, theunderside of which is tted to this seat. Passage through thevalve-housing is closed when the valve rests upon this seat as shown inFig.` 1. InFig.

Specification of Letters Patent.

Application lled March 7,

- Such matter,

Patented May 16, 11911. 1910. Serial No. 547,703.

wings a are provided on its underside which arefitted to slide withinnipple 11. The valve is actuated for raising it by a wedgeshapedcam-block 14, which is connected to a valve-stem 15 supported to permitit to be moved in a longitudinal direction and transverse with referenceto the valve-chamber and the alined nipples of the housing. It issupported for such movement at its inner end in al pocket 16 and at itsouter portion in a neck 17, both alined transversely to the nipples andformed between them in opposite sidesof the housing, these sides beingoutwardly extended for the purpose.

In assembling, the stem without the camblock is inserted through theoutwardly open neck 17, a stuffing-box 18 'beingformed in this latter toreceive packing, which is held in place by the usual gland 19 andpermits formation of a steam tight-joint. The inner part of the insertedstem is seated inthe outer part of pocket 16 to which it is fitted. Nofit is attempted in the inner part of the pocket where the same is coredout larger to permit necessary clearance of the machinetool whereby thepocket is formed. Such an enlargement is desirable to prevent resistanceto the movement `of the valve-stem, by any matter apt to work into thispocket.

or water forinstance, is afforded an escape through a channel, wherebythe pocket communicates with the valvechamber. This channel may beformed by providing a flat place on the inner part of the valve-stem asshown at 21. The camblock is introduced through one of the nipples andto facilitate its connection to the stem, a cut-out 22 is provided inthe side of this latter in which it is seated. A screw 23 completestheconnection.

Action on the valve is by means of the,l

cam-surface on the free side of the camblock which acts on the undersideof the valve or on parts,` connected therewith. In this case it acts onthe underside of the wings, which iunderside is shapedcomplementary tothe cam-surface of the cam- .block. The arrangement isbydpreference so,that of four wings provlde the lower Inipple 11 and extends into anotch 28,

alined endsof two wings a form this underside. A cut-out 24 is providedin the-alined ends of the other two wings whereby the valve, bystraddling the block, retains always its proper engagement therewithwith-` out interfering withV the movement..

Outward movement of the valve-stem by means of a handle 25 raises thevalve asv shown in Fig. 2. Inward movement permits it to seat as shownin Fig. 1, it seating of course with the pressure.

Proper engagement between block and valve may be adjusted and maintainedagainst wearv by the use of washers 26, inserted below the block.

The valve may of course bey connected in any position, horizontal,inverted, etc., and therefore means are necessary to prevent it fromdropping out of nipple 11, in case it is inverted and the pressure isoli'. A set-screw 27 is shown in Fig. 2, which is seated in cut into theedge of oneof the wings. A coilspring 29 is shown in Fig. 1, a boss 31being provided onthe'valvewhereby, at one of its'ends, the spring isheld in place. At its other end the spring is held by a bridge 32 whichmight be provided in an extended part of nipple l1. By preference'thisextension is rovided by means of a separate member or onnet 33 seatedupon nipple ll.

Handle 25 is so connected to the housing that it may be set to move inany plane to suit conditions, or convenience of the operator. For suchpurpose a coupling ring 34 is used to which the pivotal connection ofthe handle by means of a link 35 is accomplished. This rin is adjustablyseated upon neck 17 so t at it may be shifted around on the same untilthe handle is in the desired position, after which said ring istidghtened by means of a screw 36. The han e is loosely jointed to thevalve-stem, so that this ad'ustment of it does not interfere with oradect the position of the stem. This latter is held to the handle, tomove it longitudinally, between two shoulders 37 and 38, the inner oneof which is formed by reducing the outer end of the stem. The outer oneis formed by a nut 38, seated upon this reduced end.

Connectionl between pipe and valve-housing may be direct to the nipplesof this latter, they being threaded for, the purpose, or by means ofcouplings as shown in Fig. l, 39 and 41 being the complement-ary membersof these couplings, one of which members is connected to the pipe. nerof connection permits disconnection and removal of the valve withoutdisturbing the pipe-line. The direct connection may be to the outside ofthe nip les or to their inside,.

the nipples being pre erably threaded, both outside and inside. Suchinteriorconneci said bonnet This manessere V'tion as to the upper nipplewould have to be made by means of the bonnet. y

Disconnection of the parts attached to nipple 11 gives at once access tothe valve and to its seat, to permit renewal required, or refitting,without involving any other part of the valve or housing.

Having described my invention, I claim las new:

y 1.l In valve-construction, the combination of a housing having alinedpipe-attaching nipples on opposite sides the outer end of one of whichconstitutes a valve-seat, a valve fitted to this seat, a valve-stemslidably supported in the housing opposite the inner end of this valve,a cam rigidly connected to this stem and adapted to engage this innerend of the valve Jfor the purpose of actuating it and means tomanipulate the valve-stem.

2. In valve-construction, the combination of a housing having alinedpipe-attaching nipples on opposite sides the outer end of one of whichconstitutes a valve-seat, a valve fitted to this seat, a bonnet fittedto this nipple, extending beyond the valve seated on this nipple andadapted for pipe-connection,

permit access to the' valve-seat, a valve-stem slidably supportedopposite the inner side of this valve, means provided on the stemadapted to actuate the valve and means to manipulate the valve-stem.

y 3. In valve-construction, the combination of a housing havingpipe-attaching nipples one of which contains a valve-seat, a valvefitted to this seat, a bonnet iitted to this nipple, a spring carried inthis bonnet to hold the valve normally seated, a valve-stem slidablysupported in the housing, a cam carried on this stem adapted `to raisethe valve against the action of the spring and means to manipulate thisstem.

4. In valve-construction, the combination of a housing havingpipe-attaching nipples one of which at its outer end contains avalve-seat, a valve for this seat movably fitted to the outer end ofthis particular nipple andprovided with an inclinedsurface on its innerend, an inclined cam adapted to interact with this inclined surface to,

being detachably connected to of a housing adapted for pipe-connectionprovided with opposite alined stem-bearings and provided with avalve-seat and an outand intermediate inlet and outlet openings, wardlyextending neck, a valve movably the 4inlet openin-g being 'provided withan fitted tothe seat, a valve-stem slidably supexternal valve-seat., avalve movably fitted ported in the neck mentioned and outside to thisseat, a stem slidably supported inthe of which it extends, said stem tobe used bearings in the housing mentioned and in connection with themanipulation of the adapted for use in connection with the opvalve, ahandle connected between its ends to eration of the valve and means tomanipu-` the free end of this stem and in a manner to lat-e thisfstem.permit of it having a rotary, adjustment In testimony whereof,Ihereunto-aflix my aboutthisffree end, 5t link connected to one ofsignature in'the'presence of two witnesses. the ends o the han le and aclam in rin adjustably seated on the neck of th husin ROBERT E' MOFITTto which the other end of this link connects. Witnesses:

7. In valve-construction, the combination C. SPENGEL,

' of a substantially globular valve-housing T. LE BEAU.

